26756346641 has 2 divisors, whose sum is σ = 26756346642. Its totient is φ = 26756346640.

The previous prime is 26756346629. The next prime is 26756346689. The reversal of 26756346641 is 14664365762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26307542416 + 448804225 = 162196^2 + 21185^2 .

It is a cyclic number.

It is not a de Polignac number, because 26756346641 - 2²⁶ = 26689237777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26756346641.

It is not a weakly prime, because it can be changed into another prime (26756346601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13378173320 + 13378173321.

It is an arithmetic number, because the mean of its divisors is an integer number (13378173321).

Almost surely, 2^26756346641 is an apocalyptic number.

It is an amenable number.

26756346641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26756346641 is an equidigital number, since it uses as much as digits as its factorization.

26756346641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 50.

The spelling of 26756346641 in words is "twenty-six billion, seven hundred fifty-six million, three hundred forty-six thousand, six hundred forty-one".